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TLC7225CDW Fiches technique(PDF) 3 Page - Texas Instruments |
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TLC7225CDW Fiches technique(HTML) 3 Page - Texas Instruments |
3 / 21 page TLC7225C, TLC7225I QUADRUPLE 8-BIT DIGITAL-TO-ANALOG CONVERTERS SLAS109B – OCTOBER 1996 – REVISED FEBRUARY 2001 3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions TERMINAL I/O DESCRIPTION NAME NO. I/O DESCRIPTION AGND 6 Analog ground A0, A1 18, 19 I DAC select inputs DGND 7 Digital ground DB0 – DB7 9 – 16 I Digital DAC data inputs LDAC 8 Load DAC. A high level simultaneously loads all four DAC registers. DAC registers are transparent when LDAC is low. OUTA 2 O DACA output OUTB 1 O DACB output OUTC 24 O DACC output OUTD 23 O DACD output REFA 5 I Voltage reference input to DACA REFB 4 I Voltage reference input to DACB REFC 21 I Voltage reference input to DACC REFD 20 I Voltage reference input to DACD VDD 22 Positive supply voltage VSS 3 Negative supply voltage WR 17 I Write input selects DAC transparency or latch mode absolute maximum ratings over operating free-air temperature range (unless otherwise note)† Supply voltage range, VDD: to AGND or DGND – 0.3 V to 17 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . to VSS – 0.3 V to 24 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Supply voltage range, VSS: to AGND or DGND – 7 V to VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Voltage range between AGND and DGND – 0.3 V to VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Input voltage range, VI (to DGND) – 0.3 V to VDD + 0.3 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Reference voltage range, Vref (to AGND) – 0.3 V to VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output voltage range, VO (to AGND) (see Note 1) VSS to VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Continuous total power dissipation at (or below) TA = 25°C (see Note 2) 500 mW . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range: C suffix 0 °C to 70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I suffix – 40 °C to 85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg – 65 °C to 150°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. Output voltages may be shorted to AGND provided that the power dissipation of the package is not exceeded. Typically short circuit current to AGND is 50 mA. 2. For operation above TA = 75°C derate linearly at the rate of 2.0 mW/°C. |
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Description similaire - TLC7225CDW |
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